What led to the Truman doctrine and containment? What pattern of foreign policy did the doctrine establish?

It's "To contain communism, Truman promised to give financial aid to countries like Turkey."

the Truman Doctrine is a set of principles of U. S. foreign policy declared by Harry Truman in a 1947 address to Congress to request $400 million in aid to Greece and Turkey, as well as authorization to send American economic and military advisers to the two countries. Truman argued that the U. S. should support Greece and Turkey economically and militarily to prevent their falling under Soviet control. he supported this request by proclaiming: "one of the primary objectives of the foreign policy of the United States is the creation of conditions in which we and other nations will be able to work out a way of life free from coercion. this was a fundamental issue in the war with Germany and Japan. our victory was won over countries which sought to impose their will, and their way of life, upon other nations." he called upon the U. S. to "support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures," which generalized his hopes for Greece and Turkey into a doctrine applicable throughout the world. the Soviet Union was clearly at the heart of Truman's thoughts, but it was never directly mentioned in his speech. as Edler states, Truman was attempting to solve Eastern Europe's instability while making sure the spread of communism would not affect nations like Greece and Turkey.